Skip Navigation LinksHome > August 2012 - Volume 26 - Issue 8 > Resting Salivary Levels of IgA and Cortisol Are Significantl...
Journal of Strength & Conditioning Research:
doi: 10.1519/JSC.0b013e31823a4246
Original Research

Resting Salivary Levels of IgA and Cortisol Are Significantly Affected During Intensive Resistance Training Periods in Elite Male Weightlifters

Tsai, Min-Lung1; Li, Tzai-Li2; Chou, Li-Wei3; Chang, Chen-Kang4; Huang, Shu-Yi1; Fang, Shih-Hua1

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Abstract: Tsai, M-L, Li, T-L, Chou, L-W, Chang, C-K, Huang, S-Y, and Fang, S-H. Resting salivary levels of IgA and cortisol are significantly affected during intensive resistance training period in elite male weightlifters. J Strength Cond Res 26(8): 2202–2208, 2012—The aim of this study was to investigate the cumulative effects of intensive resistance training on salivary immunoglobulin A (SIgA) and cortisol responses in elite male weightlifters. Eleven elite male Taiwanese weightlifters were trained through 3 training stages before a national weightlifting competition, and this was followed by a 2-week recovery stage. Resting saliva samples were collected once in each of the 4 stages. Salivary concentrations of total protein (TP), SIgA, lactoferrin, and cortisol were measured. The results showed that (a) salivary TP concentrations were not significantly affected; (b) resting levels of SIgA, the ratio of SIgA to TP (SIgA/TP), cortisol, and the ratio of cortisol to TP (cortisol/TP) were significantly higher in the training stages than in the recovery stage; (c) a positive correlation was revealed between the ratios of SIgA/TP and cortisol/TP; and (d) the resting salivary lactoferrin concentrations and the ratio of lactoferrin to TP (lactoferrin/TP) were significantly lower in stage 1 than in the recovery stage. The findings in this study suggest that prolonged, intensive resistance training exerts cumulative effects on SIgA and cortisol responses in elite weightlifters.

© 2012 National Strength and Conditioning Association



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